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A microscope objective has a focal length of 17 mm. It forms an image at 16 cm from its second focal point. How far from the objective is the object located? Answer in units of cm
What is the magnifying power for a person whose near point is at 25 cm if the focal length of the eyepiece is 54 mm?
An LC circuit includes a 0.010 µF capacitor and a 400 µH inductor. If the peak voltage on the capacitor is 190 Volt, find what is the peak current in the inductor
Two rockets, A and B, approach the earth from opposite directions at speed 0.60c. What is the length of rocket A as measured by the crew of rocket B
A thin film of acetone (n = 1.25) coats a thick glass plate (n = 1.50). White light is incident normal to the film. Estimate the thickness of the acetone film
The distance between between the 1st and 10th minima of a double-slit system is 18 mm, find the wavelength of light generating the interference pattern
a. What is the final temperature of the mix? b. What is the amount of energy transferred by heat from the iron to the water? c. What are the entropy changes of the water and of the iron?
Determine the direction of the net electrostatic force on charge q3 (angle with respect to the positive x-axis).
Two atoms of masses m1 and m2 are bound together in a molecule with energy so low that their separation is always close to the equilibrium value r0. With the parabola apporximation, the effective spring constant is k = (d2U)/(dr2) evaluated at r0
At a time t seconds after it is thrown up in the air, a tomato is at a height of f(t) = -4.9t2 + 25t+ 3 meters.
Assuming that solar panels currently sell for about $2.50 per watt of peak output power and that Xcel energy currently bills customers for electricity at about $0.10 per kilo-watt hour, how long will it take a solar panel installation to pay for itse..
An aluminum cup contains 225 g of water and a 40-g copper stirrer, all at 27 °C. A 500-g sample of silver at an initial temperature of 87 °C is placed in the water. Calculate the mass of the aluminum cup
A thin uniform rod has a length of 0.500m and is rotating in a circle on a frictionless table. The axis of rotation is perpendicular to the length of the rod at one end, What is the mass of the bug
A38.0-kg child takes a ride on a Ferris wheel that rotates four times each minute and has a diameter of20.0m. What force does the seat exert on the child at the highest point of the ride
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